Example #1
0
 /// <summary>
 /// The full and original text of the command.
 /// </summary>
 /// <param name="commandText">The command text.</param>
 /// <param name="transactionList">The transaction list.</param>
 /// <param name="siteList"></param>
 /// <param name="systemClock"></param>
 public BaseAction(string commandText, TransactionList transactionList, SiteList siteList, SystemClock systemClock)
 {
     CommandText = commandText;
     TransactionList = transactionList;
     SiteList = siteList;
     systemClock = systemClock;
 }
Example #2
0
        public Dump(string commandText, TransactionList transactionList, SiteList siteList, SystemClock systemClock)
            : base(commandText, transactionList, siteList, systemClock)
        {
            string[] info = commandText.Split(new[] { '(', ')' });

            DumpFull = info[1].Trim().Equals(String.Empty);

            if (info.Count() == 3)
                DumpObject = info[1];
        }
        public BeginTransaction(string commandText, TransactionList transactionList, SiteList siteList,
                                SystemClock systemClock)
            : base(commandText, transactionList, siteList, systemClock)
        {
            string[] info = commandText.Split(new[] {'(', ')'});

            if (info.Length != 3)
                throw new Exception("Invalid command format: " + commandText);

            Transaction = new Transaction(info[1], systemClock) {IsReadOnly = info[0].ToLower().Equals("beginro")};
            transactionList.AddTransaction(Transaction);
        }
Example #4
0
        /// <summary>
        /// Initializes a new instance of the <see cref="Fail"/> class.
        /// </summary>
        /// <param name="commandText">The command text.</param>
        /// <param name="transactionList">The transaction list.</param>
        /// <param name="siteList"></param>
        /// <param name="systemClock"></param>
        public Fail(string commandText, TransactionList transactionList, SiteList siteList, SystemClock systemClock)
            : base(commandText, transactionList, siteList, systemClock)
        {
            string[] info = commandText.Split(new[] { '(', ')' });

            if (info.Length != 3)
                throw new Exception("Invalid command format: " + commandText);

            Site = siteList.GetSite(int.Parse(info[1]));

            if (Site == null)
                throw new Exception("Site not found:" + info[1]);
        }
        public EndTransaction(string commandText, TransactionList transactionList, SiteList siteList, SystemClock systemClock)
            : base(commandText, transactionList, siteList, systemClock)
        {
            string[] info = commandText.Split(new[] {'(', ')'});

            if (info.Length != 3)
                throw new Exception("Invalid command format: " + commandText);

            Transaction = transactionList.GetTransaction(info[1]);

            if (Transaction == null)
                throw new Exception("Transaction not found: " + commandText);
        }
Example #6
0
        private static void Main(string[] args)
        {
            _systemClock = new SystemClock();
            _siteList = new SiteList(_systemClock);
            _transactionList = new TransactionList(_systemClock);
            State.output = new List<string>();
            State.Clock = _systemClock;

            InitializeSites();

            GetFile();
            List<string> file = ReadFile();
            var errors = new List<String>();

            _executionPlan = InputParser.ReadInput(file, _transactionList, _siteList, _systemClock, ref errors);

            Debug.WriteLine("System starting...");

            if (errors.Count == 0)
            {
                //main execution loop
                foreach (ExecutionEntity currentEntity in _executionPlan)
                {
                    foreach (BaseAction tempAction in currentEntity.Actions)
                    {
                        ProcessEntity(tempAction);
                    }

                    ProcessPausedTransactions();

                    _systemClock.Tick();
                }
            }
            else
            {
                Console.WriteLine("Execution stopped, errors encountered: ");
                foreach (String error in errors)
                {
                    Console.WriteLine(error);
                }
            }

            foreach (String outpt in State.output)
                Console.WriteLine(outpt);

            FileOutput.WriteFile(_fileName, State.output);
            Console.ReadLine();
        }
Example #7
0
        public Write(string commandText, TransactionList transactionList, SiteList siteList, SystemClock systemClock)
            : base(commandText, transactionList, siteList, systemClock)
        {
            string[] info = commandText.Split(new[] { '(', ')' });

            if (info.Length != 3)
                throw new Exception("Invalid command format: " + commandText);

            string[] parameters = info[1].Split(',');

            parameters = InputParser.TrimStringList(parameters);

            Transaction = transactionList.GetTransaction(parameters[0]);

            if (Transaction == null)
                throw new Exception("Transaction not found: " + commandText);

            VariableId = parameters[1];
            Value = parameters[2];
        }
Example #8
0
        /// <summary>
        /// Reads the file input and converts it into a list of execution plans.
        /// </summary>
        /// <param name="fileInput">The file input.</param>
        /// <param name="transactionList">The transaction list.</param>
        /// <param name="siteList">The site list.</param>
        /// <param name="systemClock">The system clock.</param>
        /// <param name="errorList">The error list.</param>
        /// <returns></returns>
        public static List<ExecutionEntity> ReadInput(List<string> fileInput, TransactionList transactionList,
                                                      SiteList siteList, SystemClock systemClock,
                                                      ref List<String> errorList)
        {
            var entities = new List<ExecutionEntity>();

            foreach (String currentLine in fileInput)
            {
                List<string> lineElements = BreakLine(currentLine);
                var tempExecutionEntiy = new ExecutionEntity();

                foreach (String tempElement in lineElements)
                {
                    BaseAction result = StringToAction(tempElement, transactionList, siteList, systemClock,
                                                       ref errorList);

                    if (result != null)
                        tempExecutionEntiy.AddAction(result);
                }

                entities.Add(tempExecutionEntiy);
            }

            //initialized all used variables at each site
            foreach (ExecutionEntity currentEntity in entities)
            {
                foreach (BaseAction tempAction in currentEntity.Actions)
                {
                    if (tempAction is Read)
                    {
                        siteList.GetRunningSitesWithVariable(((Read)tempAction).VariableId);
                    }
                    else if (tempAction is Write)
                    {
                        siteList.GetRunningSitesWithVariable(((Write)tempAction).VariableId);
                    }
                }
            }

            return entities;
        }
Example #9
0
        public static BaseAction StringToAction(String lineElement, TransactionList transactionList, SiteList siteList,
                                                SystemClock systemClock, ref List<String> errorList)
        {
            lineElement = lineElement.Trim();
            string command = lineElement.Split('(').FirstOrDefault();

            if (String.IsNullOrEmpty(command))
            {
                errorList.Add("Invalid Command Format: " + lineElement);
                return null;
            }

            command = command.ToLower();

            if (command.Equals("begin") || command.Equals("beginro"))
                return new BeginTransaction(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("end"))
                return new EndTransaction(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("r"))
                return new Read(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("w"))
                return new Write(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("fail"))
                return new Fail(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("recover"))
                return new Recover(lineElement, transactionList, siteList, systemClock);

            if (command.Equals("dump"))
                return new Dump(lineElement, transactionList, siteList, systemClock);

            errorList.Add("Couldn't interpret: " + lineElement);
            return null;
        }